نتایج جستجو برای: helminth

تعداد نتایج: 4686  

2008
Philip Bejon Tabitha W. Mwangi Brett Lowe Norbert Peshu Adrian V. S. Hill Kevin Marsh

BACKGROUND Helminth infection is common in malaria endemic areas, and an interaction between the two would be of considerable public health importance. Animal models suggest that helminth infections may increase susceptibility to malaria, but epidemiological data has been limited and contradictory. METHODOLOGY/PRINCIPAL FINDINGS In a vaccine trial, we studied 387 one- to six-year-old children...

2014
Radovan Václav Jana Blažeková

While hosts are routinely exploited by a community of parasite species, the principles governing host responses towards parasites are unclear. Identifying the health outcomes of coinfections involving helminth macroparasites and microparasites is one area of importance for public and domestic animal health. For instance, it is controversial how deworming programmes affect incidence and severity...

2016
Abraham Degarege Berhanu Erko

Understanding the impact of helminth infections on clinical malaria is useful for designing effective malaria control strategies. Plenty of epidemiological studies have been conducted to unravel the nature of interactions between Plasmodium and helminth infection. Careful broad summarization of the existing literature suggests that Schistosoma mansoni and hookworm infections may increase the ri...

Journal: :Journal of helminthology 2001
B S Dezfuli L Giari S De Biaggi R Poulin

Species co-occurrences and interspecific associations between intensity of infection were studied in helminth communities of three populations of brown trout, Salmo trutta, from northern Italy. Of the eight helminth species, only four were common enough to be included in the analyses: Pomphorhynchus laevis, Acanthocephalus anguillae, Echinorhynchus truttae and Cyathocephalus truncatus. The obse...

2016
C.L. Amundson N.J. Traub A.J. Smith-Herron P.L. Flint

Climate change is occurring rapidly at high latitudes, and subsequent changes in parasite communities may have implications for hosts including wildlife and humans. Waterfowl, in particular, harbor numerous parasites and may facilitate parasite movement across broad geographic areas due to migratory movements. However, little is known about helminth community structure of waterfowl at northern ...

Journal: :Journal of clinical microbiology 1982
J C Wood G Friedly L M de la Maza

The detection and identification of intestinal helminths were studied retrospectively by comparing the Formalin concentration technique with the trichrome-stained smear technique. A total of 3,997 stool samples from 1,570 patients were examined by both methods. Of the 3,997 samples, 31% (1,239 of 3,997) contained helminths or protozoans or both. A total of 11% (434 of 3,997) of the samples repr...

Journal: :Asia Pacific journal of clinical nutrition 1998
H Y Tichelaar C M Smuts M E van Stuijvenberg M Faber A J Benadé

Intestinal helminth infections may reduce nutrient availability and thereby impair cognitive growth and other functions. Certain nutrients such as fatty acids may also modulate inflammation and the immune response and, thus, the severity of helminth infection. Fatty acid status may, therefore, both be affected by and affect helminth infection. Rural school-children in South Africa with a 35% he...

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2003
C F Rocha D Vrcibradic J J Vicente M Cunha-Barros

We analysed the helminth fauna associated with the lizard Mabuya dorsivittata (Scincidae) from a high-altitude area in Itatiaia National Park, Rio de Janeiro State, Brazil. Of the 16 lizards examined, 12 (75%) were infected by at least one helminth. Only two helminth species were found: Physaloptera retusa and Skrjabinodon spinosulus (Nematoda), the former with a prevalence of 68.8% and a mean ...

Journal: :The Journal of parasitology 1987
K J Reinhard R H Hevly G A Anderson

Examination of coprolites excavated from archaeological sites in the Americas demonstrates excellent preservation of helminth eggs and, in some cases, larvae. To gain an understanding of helminth parasitism in prehistory on the Colorado Plateau of Arizona, New Mexico, and Utah, 319 coprolites from 5 archaeological sites were analyzed. Helminth eggs and larvae were recovered after the coprolites...

2011
Jason M. Garvon Alan M. Fedynich Markus J. Peterson Danny B. Pence

The influence of spatially distinct host subpopulations on helminth community structure and pattern was examined in a migratory avian host species. Forty helminth species represented by 24,082 individuals were collected from 184 blue-winged teal (Anas discors; BWT) from 2 primary migratory corridors in Florida (eastern migratory corridor; EMC) and Louisiana and Texas (western migratory corridor...

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